DESCRIPTIONS OF SOME PLEISTOCENE VERTEBEATES FOUND IN THE UNITED STATES. By Olb^r p. Hay. Associate of the Carnegie Institution of Washington. In the following paper the writer describes the materials found in six collections of fossil vertebrates. Most of these collections were made many years ago and have lain in various museums unstudied. Two collections came from eastern Tennessee, one of them from Rogersville, Hawkins County, the other from Whitesburg, Hamblen County. A third collection was made at Cavetown, Washington County, Maryland, by Dr. Charles Peabody and Mr. Warren K. Moorehead, of the department of archaeology in Phillips Academy, Andover, Massachusetts. The fourth collection is one that was gathered from the loess at Alton, Illinois, some time before 1883, by Hon. William McAdams, of the city named. The fifth collection is that obtained in a sulphur spring near Afton, Oklahoma, by Prof. W. H. Holmes, head curator of anthropology in the United States National Museum. A few of the larger species of this collection have been described by Dr. F. A. Lucas, in papers of several years ago. The sixth collection was made in 1915 for the writer, from a cave situated near the village of Bulverde, Bexar County, Texas, and is now the property of the United States National Museum. It will be seen that the localities are scattered over a wide range of country, and, as a consequence, the collections furnish a considerable variety of species. So far as the writer can determine they consist mostly of animals that lived at about the middle of the Pleistocene period. Most of the remains found in the spring at Afton, Okla-homa, are regarded as belonging to animals that lived during the Aftonian interglacial stage, but it is not unlikely that others got buried there at later times, some possibly near or in the Recent. 1. COLLECTION FROM NEAR ROGERSVILLE, HAWKINS COUNTY, TENNESSEE. This collection consists of a few bones and teeth which were sent to the Smithsonian Institution in 1887, by Mr. James W. Rogan, of Rogersville. They were reported as having been found in the marble Proceedings U. S. National Museum. Vol. 58-No. 2328.